2. Waterfall Model, Spiral Model, Current Practice Flashcards

1
Q

Er der én rigtig løsning?

A

No Silver Bullet in Software Engineering (Brooks 1987)

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2
Q

Essence vs. accident; Essense

A

Essense er de essentielle problemer der kan opstå - inherent properties fx

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3
Q

Essence vs. accident; Accident

A

Accident kan være de ikke essentielle men relevante problemer ved ISD

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4
Q

Inherent properties?

A

Complexity, conformity, changeability, invisibility

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5
Q

Complexity

A

Alt er forskelligt, stort antal af faser, stor skala

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6
Q

Conformity

A

Det skal passe og være istand til at kunne betjenes

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7
Q

Changability

A

Applications, users, laws, machine - alt ændres hele tiden og det skal passe derind.

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8
Q

Invisibility

A

Det skal være usynligt? I guess

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9
Q

Et historisk perspektiv er skrevet af?

A

Avison & Fitzgerald 2006, Methodologies for Developing IS: A historical perspective

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10
Q

De 4 historiske eraer:

A

Pre-Methodology, Early Methodology, Methodology, Post-Methodology

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11
Q

Pre-methodology era (1950+)

A

Introduction af computere, ingen ide af methodology, stigende interesse

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12
Q

Early Methodology Era (1960+)

A

Need for standards, structure og discipline; Waterfall

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13
Q

Waterfall Model phases

A

1) Requirements
2) Design
3) Implementation
4) Verification
5) Maintenance

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14
Q

Methodology Era (1970+)

A

Videreudvikling på WM og nye approaches med andre paradigmer (fx Prototyping)

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15
Q

Prototyping (first real methodology)

A

Botton down approach, implementing small core, grow software around core, changes made during a learning process

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16
Q

Post-Methodology Era (2000+)

A

Reflection era; organisationer bruger methodologies reflekterende - kritik af disse: kræver rigtig meget

17
Q

Nye approaches in methdologies in practice:

A

1) Buy
2) Oursourcing
3) Pragmatic approaches (brug hvad du tror der virker)
4) Contingency approach
5) Agile development

18
Q

Information system?

A

Assembles, stores, processes, delivers information relevant to an organization or society

19
Q

Method?

A

Coherent og systematic approach based on a philosophy of system development